| /******************************************************************************* |
| * Copyright (c) 2000, 2009 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * Browser example snippet: Examine request and response headers in a Mozilla Browser |
| * |
| * IMPORTANT: For this snippet to work properly all of the requirements |
| * for using JavaXPCOM in a stand-alone application must be satisfied |
| * (see http://www.eclipse.org/swt/faq.php#howusejavaxpcom). |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| * |
| * @since 3.3 |
| */ |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.SWTError; |
| import org.eclipse.swt.browser.Browser; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.*; |
| import org.mozilla.interfaces.*; |
| import org.mozilla.xpcom.Mozilla; |
| |
| public class Snippet321 { |
| |
| public static void main(String [] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setBounds(10,10,200,200); |
| shell.setLayout(new FillLayout()); |
| Browser browser; |
| try { |
| browser = new Browser(shell, SWT.MOZILLA); |
| } catch (SWTError e) { |
| System.out.println("Could not instantiate Browser: " + e.getMessage()); |
| display.dispose(); |
| return; |
| } |
| |
| nsIObserver observer = new nsIObserver() { |
| public nsISupports queryInterface(String aIID) { |
| if (aIID.equals(nsIObserver.NS_IOBSERVER_IID) || aIID.equals(nsIObserver.NS_ISUPPORTS_IID)) { |
| return this; |
| } |
| return null; |
| } |
| public void observe(nsISupports subject, String topic, String data) { |
| nsIHttpChannel channel = (nsIHttpChannel)subject.queryInterface(nsIHttpChannel.NS_IHTTPCHANNEL_IID); |
| nsIRequest request = (nsIRequest)subject.queryInterface(nsIRequest.NS_IREQUEST_IID); |
| if (topic.equals("http-on-modify-request")) { |
| System.out.println("---------------------\nSome Request Header Values for " + request.getName() + ':'); |
| printRequestHeader(channel, "accept"); |
| printRequestHeader(channel, "accept-language"); |
| printRequestHeader(channel, "host"); |
| printRequestHeader(channel, "user-agent"); |
| } else { |
| /* http-on-examine-response */ |
| System.out.println("---------------------\n\tSome Response Header Values for " + request.getName() + ':'); |
| printResponseHeader(channel, "content-length"); |
| printResponseHeader(channel, "content-type"); |
| printResponseHeader(channel, "expires"); |
| printResponseHeader(channel, "server"); |
| } |
| } |
| void printRequestHeader(nsIHttpChannel channel, String header) { |
| try { |
| System.out.println(header + '=' + channel.getRequestHeader(header)); |
| } catch (Exception e) { |
| // the header did not exist, just continue |
| } |
| } |
| void printResponseHeader(nsIHttpChannel channel, String header) { |
| try { |
| System.out.println('\t' + header + '=' + channel.getResponseHeader(header)); |
| } catch (Exception e) { |
| // the header did not exist, just continue |
| } |
| } |
| }; |
| nsIObserverService observerService = (nsIObserverService)Mozilla.getInstance().getServiceManager().getServiceByContractID( |
| "@mozilla.org/observer-service;1", nsIObserverService.NS_IOBSERVERSERVICE_IID); |
| observerService.addObserver(observer, "http-on-modify-request", false); |
| observerService.addObserver(observer, "http-on-examine-response", false); |
| |
| browser.setUrl("http://www.eclipse.org"); |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) display.sleep(); |
| } |
| display.dispose(); |
| } |
| |
| } |